brenaroo14 brenaroo14

25-09-2017
History

contestada

Which gas was present in the atmospheres of both early and modern Earth? history

Respuesta :

mkcastro mkcastro

25-09-2017

78%is nitrogen
21%is oxygen
and then theres 2 others which is argon 0.9% and CO2 0.037%

Answer Link

Otras preguntas

Which element will attract electrons more strongly—fluorine or carbon? explain your answer?

How did britain strike at germany's economy?

5.95, 5.90, 5.85, 5.80, 5.75, 5.75, 5.75, 5.65, 5.65, 5.65, 5.55, 5.55, 5.55, 5.55, 5.55, 5.55 The men's pole vault finals' scores for the 2004 Olympic games

suppose the same amount of heat is applied to two bars. they have the same mass, but experience different changes in temperature. are the specific heat capaciti

A positive sexual relationshp can a. be a shared pleasure. b. be a haven from everyday tensions. c. enhance a couple's mutual understanding and caring. d. do al

A student explained to the class that helium has 8 valence electrons because it is in group 18. Is the student correct? - The student is incorrect because heli

if a population's per capita growth rate is 0.02 and its population is 100000000 how large will the population be in 5 years

What are the membrane bound sacs that package and transport proteins?

What was colonial maryland relationship with natives?

What should you consider when eating at a fast-food restaurant apex?